In the description below items contained in []'s are optional. When
providing the item, do not include the []'s around it. Items in angle
brackets, such as <address>, are meta-symbols that should be replaced
by appropriate text without the angle brackets.

It understands the following commands:

subscribe <list> [<address>]
Subscribe yourself (or <address> if specified) to the named <list>.

unsubscribe <list> [<address>]
Unsubscribe yourself (or <address> if specified) from the named <list>.
"unsubscribe *" will remove you (or <address>) from all lists. This
_may not_ work if you have subscribed using multiple addresses.

get <list> <filename>
Get a file related to <list>.

index <list>
Return an index of files you can "get" for <list>.

which [<address>]
Find out which lists you (or <address> if specified) are on.

who <list>
Find out who is on the named <list>.

info <list>
Retrieve the general introductory information for the named <list>.

intro <list>
Retrieve the introductory message sent to new users. Non-subscribers
may not be able to retrieve this.